Adjustable lock for windows



May 28, 1935.

A. v. VAZ QUEZ ADJUSTABLE LOCK FOR WINDOWS Filed May '7, 1934 g5'INVENTOR 25 BY I A QU Z 6 ATTOPYIQNEY Patented May 28, 1935 UNITEDSTATES PATENT, OFFICE ADJUSTABLE LOOK FOR WINDOWS Alejo V. Vazquez, NewYork, N. Y.

Application May 7, 1934, Serial No. 724,322

4 Claims.

This invention relates to new and useful improvements in an adjustablelock for windows.

The invention has for an object the construction of a look as mentionedwhich is adapted to be attached upon the top of an inner window sash andis provided with clamping screws engageable against the outer windowsash and against the frame of the window for the purpose of holding thesashes locked to each other and locked to the frame.

More particularly the invention relates to the construction of certainbrackets adapted to hold the screws in operative positions.

Still further the invention contemplates constructing the bracketsmentioned in the previous paragraph of substantially U-shape with thescrew engaging through both of the arms of the U-shape, and the U-shapebrackets being attached upon the body of the lock at their centerportions, that is, the bends.

Still further the invention also contemplates the association of stripswith apertures for receiving the ends of the screws, arranged upon theouter sash and upon the frame for coaction with the screws.

Still further the invention alSO proposes the provision of means wherebythe U-shaped brackets forv holding the screws are adjustably mountedupon the body of the device and arranged in a manner so that they may belocked immovable in operative positions, and upon slight turning of .thescrew be movable into inoperative positions and so prevent the necessityof an exceedingly large number of turns upon the screws to disengage thescrews from the strips.

Still further the invention proposes the construction of a device asmentioned which is simple and durable and which may be manufactured andsold at. a reasonable cost.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a fragmentary elevational view of a portion of a window framewith inner and outer sashes and provided with an adjustable lockaccording to this invention.

Fig. 2 is a fragmentary sectional view taken on the line 2-2 of Fig. 1.

:Fig. 3 is a perspective view of Fig. 1.

Fig. 4 is a fragmentary elevational view of Fig. 1 but illustratinganother embodiment of this invention.

Fig. 5 is a sectional view of the lock per se taken on the line 5--5 ofFig. 4.

Fig. 6 is a sectional view taken on the line 66 of Fig. 5. v

The adjustable lock for windowsaccording to this invention comprises aninverted L-shaped body having a top horizontal arm HI and a verticalbottom arm II, and is attached upon the top edge of an inner window sash12. More particularly the corner of the L-shaped body is engaged againstthe corner of the top edge of the sash and arranged so that a top arm l0extends over the top of the sash while the vertical arm ll extends downalong the front side. Screws l3 are engaged through the arms of theL-shaped body and into the frame portion of the sash for the attachmentof the body in position. U-shaped brackets l4. and are attached upontheir central portions .uponthe arms of said body, and are arranged soas to adjustably hold screws l6 and Iladapted to be engaged respectivelywith strips l8 and I9.

The window sash I2 is mounted in a conventional window frame 20, notillustrated in detail upon the drawing and which is associated with anouter sash 2|. A strip I8 is attached .upon the outer sash 2| and isformed witha plurality of openings 22 adapted toreceive the end of thescrew Hi. The screw 16 isthreadedly-engaged through both of the arms ofthe bracket 14 and the bracket is attached at the central portion, thatis, the bent portion upon the top of the body. More specifically thebracket I4 is arranged to be endwise of the plane of the sash 2|. I p

The bracket I5 is attached upon the vertical arm ll of the body and isarranged endwise to the side of the frame 20. The .strip I9 is attachedupon the frame 20 and is formed with a plurality of apertures 23 adaptedto receive the end of the screw I1. The screw ll threadedly engagesthrough, both of the arms of the bracket 15, and the bracket is attachedat its center upon the vertical arm ll of the body. Preferably, asillustrated in Fig. 3 the strip 18 may be much longer than the strip 19since in practice it will be found that it is desirable to relativelyadjust the inner and outer sashes through larger distances while it isdesirable to be capable of adjusting the sashes in .a fixed position,through smaller distances in the frame.

In Figs. 4 and 5 a modification of the invention has been disclosed inwhich an arrangement is provided whereby the brackets vHand I5 areadjustably mounted upon the arms of the body and arranged in such afashion that they may be latched in fixed positions, or upon certainoperation, may be moved into operative positions. More particularly eachof the brackets is formed with a bayonet slot 25, of substantiallyL-shape, upon the central portion of the bracket, and these slots areengaged by rivets 26 pro- The shanks of the rivets 26 are square, asillustrated in Fig. 5, so that when engaged in the recesses 25 thebrackets cannot rotate.

The recesses 25 are comparatively shallow, substantially one-half of thethickness of the shanks of the rivets and the arrangement is such thatthe depth of the recesses 25' is much smaller than the thickness of thestrips 58 or E9. This arrangement is such that normally, when the screwsI6 and I! are screwed in completely into the openings of the strips, andthe window is held in the latched position, the brackets 54 and l 5 willbe urged outwards so that-the recesses 25 engage the shanks of therivets 26 and so the brackets are held in fixed position againstrotation.

If it is desired to unlatch the windows the screws [6 and i! need beturned only several turns so as to be capable of moving the brackets I 4and I5 inwards to disengage the shanks of the rivets from the recesses25 Then the brackets'may be moved laterally so that the shanks of therivets pass along the short arms 25 of the L-shaped slots and thenlongitudinally so that the shanks ofthe rivets pass along the long arms25' of the L-shaped slots and it will readily be seen that the screwsare disengaged from the openings of the holding strips. The purpose ofthis arrangement is to remove the annoyance of turning the screwsthrough many revolutions before engagement and disengagement ispossible.

While I have shown and described thepreferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

' Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent, is:

1. In an adjustable lock for windows, an inverted L-shaped body forattachment on the top edge of an inner sash of a window and having a toparm for extending across the top edge of the sash and a vertical arm.for extending down along the face of the sash, U-shaped bracketsattached at their centers upon said arms, said top bracket being endwiseof the plane of the outer sash, said bottom bracket being endwise of theside of a window frame holding said sashes, and screws threadedlyengaged through the arms of said U-shaped brackets for engaging intoopenings in strips attached upon the inner side of the outer sash andthe side of the window frame, said U- shaped brackets being adjustablyattached upon said body, and headed studs from the body engaging throughbayonet slots ,in said brackets.

2. In an adjustable lock for windows, "an inverted L-shaped body forattachment on the top edge of an inner sash of a window and having a toparm for extending across the top edge of the sash and a vertical arm forextending down along the face of the sash, U-shaped brackets attached attheir centers upon said arms, said top bracket being endwise of theplane of the outer sash, said bottom bracket being endwise of the sideof a window frame holding said sashes, and screws threadedly engagedthrough the arms of said U-shaped brackets for engaging into openings instrips attached upon the inner side of the outer sash and the side ofthe window frame, said U- shaped brackets being adjustably attached uponsaid body, and headed studs from the body engaging through bayonet slotsin said brackets, said bayonet slots being of L-shape and havingrecesses in the short arms.

3. In an adjustable lock for windows, an inverted L-shaped body forattachment on the top edge of an inner sash of a window and having a toparm for extending across the top edge of the sash and a vertical arm forextending down along the face of the sash, U-shaped brackets attached attheir centers upon said arms, said top bracket being endwise of theplane of the outer sash, said bottom bracket being endwise of the sideof a window frame holding said sashes, and screws threadedly engagedthrough the arms of said U-shaped brackets for engaging into openings instrips attached upon the inner side of the outer sash and the side ofthe window frame, said U- shaped brackets being adjustably attached uponsaid body, and headed studs from the body engaging through bayonet slotsin said brackets, said bayone slots being of L-shape and having recessesin the short arms, the shanks of said headed studs being of square crosssection and engageable with said recesses, said recesses being similarlyshaped for preventing rotation of the brackets upon the studs.

4. In an adjustable lock for windows, comprising an inverted L-shapedbody for attachment on the top edge of an inner sash'of a window andhaving a top arm for extending across the top edge of the sash and avertical arm for extending down along the face of the sash, U-shapedbrackets attached at their centers upon said arms, said top bracketbeing endwise of the plane of the outer sash, said bracket being endwiseof the side of a window frame holding said sashes, and screwsthreadengaged through the arms of said U- shaped brackets and engageableinto the openings in said strips attached upon the inner side of theouter sash and the side of the window frame, said U-shaped bracketsbeing adjustably attached upon said body, and headed studs from the bodyengaging through bayonet slots in said brackets, said bayonet slotsbeing of L-shape and having recesses in the short arms, the shanks ofsaid headed studs being of square cross section and engageable with saidrecesses, said recesses being similarly shaped for preventing rotationof the brackets upon the studs, and said L-shaped slots being arrangedwith the short arms transversely and the long arms longitudinally ofsaid brackets.

ALEJO V. VAZQUEZ.

